Modelling of Shear-critical, Lightly Reinforced Concrete T-beams with Externally Bonded CFRP using ATENA Science

This paper presents the finite element modelling of shear-critical reinforced concrete beams strengthened with U-wrapped CFRP fabrics using ATENA. Fracture-plastic constitutive models, implemented in context smeared crack and crush-band approach, were employed to represent nonlinear behaviours concrete. U-wraps modelled as rein­forcement bonded surface an interface element, considering appropriate bond properties. To this end, two large lightly T-beams from tests undertaken by Brindley 2018 analysed predictions load-deflection response failure mode are presented demonstrate accuracy modelling. Moreover, parametric analyses performed assess effectiveness for strengthening deteriorated members. It is shown that can be predicted accurately, capturing successfully brittle shear observed experimentally. also useful reducing brittleness beams.